EP0529315B1 - Verfahren zum Abreinigen von mit löslichen Partikeln beladenen Schüttschichtfiltern - Google Patents

Verfahren zum Abreinigen von mit löslichen Partikeln beladenen Schüttschichtfiltern Download PDF

Info

Publication number
EP0529315B1
EP0529315B1 EP19920112662 EP92112662A EP0529315B1 EP 0529315 B1 EP0529315 B1 EP 0529315B1 EP 19920112662 EP19920112662 EP 19920112662 EP 92112662 A EP92112662 A EP 92112662A EP 0529315 B1 EP0529315 B1 EP 0529315B1
Authority
EP
European Patent Office
Prior art keywords
layer
layers
fluid
housing
bases
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19920112662
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0529315A1 (de
Inventor
Wolfgang Lindner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Forschungszentrum Karlsruhe GmbH
Original Assignee
Forschungszentrum Karlsruhe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Forschungszentrum Karlsruhe GmbH filed Critical Forschungszentrum Karlsruhe GmbH
Publication of EP0529315A1 publication Critical patent/EP0529315A1/de
Application granted granted Critical
Publication of EP0529315B1 publication Critical patent/EP0529315B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material

Definitions

  • the present invention relates to a method according to the preamble of the main claim and a device suitable for the method.
  • Bulk bed filters are generally cleaned mechanically.
  • the separated substances are removed from the filter together with the bulk material and e.g. passed through a screening machine.
  • the bulk material cleaned in this way is conveyed back into the filter and is again available for filtration.
  • US-A-4290783 discloses a method in which a vertical, thin filter mat is to be cleaned by spraying water on from the side. The dissolved substances flow down with the water on the filter mat and are passed on.
  • the present invention has for its object to provide a method for cleaning packed bed filters, which avoids the disadvantages mentioned above.
  • the method is intended to be used in the case of packed bed filters with top-down flow and which are loaded with particles that are soluble in liquids.
  • the present invention now proposes a method with the features specified in the characterizing part of patent claim 1. Further advantageous refinements of the method can be seen in the characterizing features of claims 2 to 3. Particularly suitable devices for carrying out the method according to the invention are specified in the characterizing features of claims 4 and 5.
  • the apparatus and process engineering complexity of the cleaning process can now be considerably reduced in a particularly advantageous manner.
  • the bulk material discharge, the sieving process and the conveyor can be omitted. No more abrasion is generated on the bulk material, the separated substance is obtained in a very pure form. High water contents in the exhaust gas or falling below the dew point are not Problem more, they even promote cleaning.
  • the presence of water promotes particle formation and separation processes, such as the formation of ammonium salts from SO2, NH3 and water.
  • the SO2 separation efficiency of known flue gas cleaning processes can be increased, an NH3 slip is avoided.
  • the basic idea of the new process is that the bulk material is sprayed or sprinkled with a washing liquid.
  • the separated substances are thereby dissolved and can be removed from the bed in liquid form.
  • the method is explained with reference to the schematic FIG. 1.
  • the gas stream 1 to be cleaned flows vertically through the bulk material or the three packed bed filters 2, 3 and 4 from top to bottom.
  • the bulk material is subdivided into the three layers 2 to 4 through which flow occurs.
  • Each layer of the filter is provided with a separate device for spraying the washing liquid, in the embodiment shown these are the nozzle rows 5, 6 and 7, the spray openings of which are located above the layers 2 to 4 and to which the washing liquid is fed from below.
  • the loaded washing liquid drips off under layers 2 to 4 and is carried away.
  • the washing liquid is run in a closed circuit until highly concentrated solutions are available. Waste liquids of lower concentration do not arise.
  • FIG. 1 A three-stage packed bed filter arrangement according to FIG. 1 was tested.
  • the arrangement has an outer housing 8, the bottom 9 of which is designed as a collecting trough for the washing liquid 10 emerging from the packed bed filter layers 2 to 4.
  • the housing 8 has a plurality of inner side walls 11 and 12, the length or height of which is less than the height of the housing 8 itself.
  • the upper side walls 11, in FIG. 1 to the left of the packed bed filter layers 2 to 4 are on the upper wall 13 of the housing 8 attached, the lower 12, however, on the bottom 9. Since there are now free spaces between the lower side walls 12 and the upper wall 13 or between the upper side walls 11 and the bottom 9, the gas flow can be guided through the housing.
  • Sieve-like bottoms 14, on which the filter layers 2 to 4 are applied, are inserted between each two side walls 11 and 12.
  • the supply air opening 15 is at the bottom, on the right above the exhaust air opening 16.
  • the washing liquid 10 is sprayed onto the layers.
  • the nozzles are fed via the lines 18, the washing liquid is circulated via the pump device (not described in more detail) or is dispensed at a certain degree of concentration.
  • the pressure drop for determining the degree of loading of each layer is monitored by means of the schematically illustrated pressure measuring devices 20, according to which the pump devices 19 are controlled.
  • the individual pressure measuring devices 20 detect the pressure difference over each layer by means of the lines 21, since these are connected between the walls 11 and the side walls of the housing 8 and measure the pressure over each layer or after the last one.
  • FIG. 2 now shows another embodiment of the housing in which the individual layers 22 are arranged horizontally inclined one above the other and the washing liquid 23 likewise sprayed parallel rows of nozzles 24 is sprayed. Under the layers 22 there are collecting channels 24 from which the loaded washing liquid runs off. The gas flow is led through the layers from top to bottom, the pressure monitoring over the layers takes place as described in FIG. 1. Here too, the washing liquid is handled as described there.
  • Fig. 3 shows that the filter differential pressure can be kept constant with the cleaning described, ie continuous operation is possible.
  • Curves I - IV show the course of the differential pressures overall and individually over the individual layers 2 - 4.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Of Particles Using Liquids (AREA)
EP19920112662 1991-08-22 1992-07-24 Verfahren zum Abreinigen von mit löslichen Partikeln beladenen Schüttschichtfiltern Expired - Lifetime EP0529315B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914127746 DE4127746A1 (de) 1991-08-22 1991-08-22 Verfahren zum abreinigen von mit loeslichen partikeln beladenen schuettschichtfiltern
DE4127746 1991-08-22

Publications (2)

Publication Number Publication Date
EP0529315A1 EP0529315A1 (de) 1993-03-03
EP0529315B1 true EP0529315B1 (de) 1996-01-24

Family

ID=6438814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920112662 Expired - Lifetime EP0529315B1 (de) 1991-08-22 1992-07-24 Verfahren zum Abreinigen von mit löslichen Partikeln beladenen Schüttschichtfiltern

Country Status (3)

Country Link
EP (1) EP0529315B1 (ko)
JP (1) JP3187156B2 (ko)
DE (1) DE4127746A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100389856C (zh) * 2005-08-31 2008-05-28 孙英姬 气体净化装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432995C1 (de) * 1994-09-16 1996-02-08 Karlsruhe Forschzent Verfahren und Vorrichtung zur Naßabreinigung von mit unlöslichen Partikeln beladenen Schüttschichtfiltern
JP2003059884A (ja) * 2001-08-20 2003-02-28 Tokyo Electron Ltd 基板処理装置及び基板処理方法
JP4537494B1 (ja) * 2009-12-24 2010-09-01 株式会社神鋼環境ソリューション ガス処理装置およびその運転方法
JP5091274B2 (ja) * 2010-04-30 2012-12-05 株式会社神鋼環境ソリューション ガス処理装置およびその運転方法
CN103990340B (zh) * 2014-03-07 2016-08-17 宁波高新区金杉新能源科技有限公司 一种湿式空气净化装置及空气净化方法
CN117949357A (zh) * 2023-12-29 2024-04-30 江苏裕荣光电科技有限公司 一种烟气连续监测设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243523B (de) * 1965-10-02 1967-06-29 Ingbuero Ritterbach & Gladbach Grobsandfilter fuer die Belueftung von Schutzbauten
US3815335A (en) * 1972-07-27 1974-06-11 Barnebey Cheney Co Washed activated charcoal adsorbers
US4083703A (en) * 1973-07-30 1978-04-11 Becker-Udwin, Inc. Processing of gas streams
US4290783A (en) * 1975-10-10 1981-09-22 Standard Oil Company Process for removal of water soluble particulate material from gas streams
DE2931424A1 (de) * 1979-08-02 1981-02-19 Schreiber Klaeranlagen Vorrichtung zur sicherung von mit brennbarem gas durchstroemten filterbehaeltern gegen flammenrueckschlag
DE3201553A1 (de) * 1982-01-20 1983-07-28 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur abscheidung von fest- und fluessigaerosolen aus gasen
DE3403980A1 (de) * 1984-02-04 1985-08-08 Uhde Gmbh, 4600 Dortmund Verfahren zur kontinuierlichen abscheidung von aerosolen aus einem gasstrom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100389856C (zh) * 2005-08-31 2008-05-28 孙英姬 气体净化装置

Also Published As

Publication number Publication date
EP0529315A1 (de) 1993-03-03
JP3187156B2 (ja) 2001-07-11
DE4127746C2 (ko) 1993-06-09
DE4127746A1 (de) 1993-02-25
JPH05200218A (ja) 1993-08-10

Similar Documents

Publication Publication Date Title
EP0124841B1 (de) Verfahren zum Waschen der Filterelemente eines Gasfilters und Vorrichtung zum Durchführen des Verfahrens
DE1752212C3 (de) Anlage zum Beschichten von Gegenständen durch Besprühen
EP1704926B1 (de) Vorrichtung zum Abtrennen von Nasslack-Overspray
DE202006021158U1 (de) Vorrichtung zum Abtrennen von Nasslack-Overspray
DE69112033T2 (de) Gas-Flüssig-Kontaktapparat und Verfahren zum Gas-Flüssig-Kontakt.
DE2416195C2 (de) Staubfilter
WO2004101132A1 (de) Verfahren und vorrichtung zum aufbringen von flüssigkeiten in eine feststoffströmung eines strahlschichtapparates
EP0270531B1 (de) Wanderbettreaktor
DE4118433C2 (de) Fließbettapparatur zum Behandeln partikelförmigen Gutes
EP0529315B1 (de) Verfahren zum Abreinigen von mit löslichen Partikeln beladenen Schüttschichtfiltern
DE68911533T2 (de) Windsichter für produktteilchen.
DE2038871B2 (de) Filtriervorrichtung zum Abscheiden von Feststoffen aus gasförmigen Medien
EP0382742B1 (de) Verfahren zur Führung eines Schüttgutstroms in mindestens einem Wanderbettreaktor und Reaktoranlage zur Durchführung des Verfahrens.
WO2018011430A1 (de) Streuanlage und verfahren zur herstellung einer streugutmatte im zuge der herstellung von werkstoffplatten
DE69409488T2 (de) Hochgeschwindigkeit und hochkapazität Nebelabscheider und Flüssigkeit-Gaskontaktvorrichtung
DE2503637A1 (de) Verfahren und vorrichtung zur herstellung von prills
DE3523192C2 (ko)
DE102017124063A1 (de) Streuanlage und Verfahren zur Herstellung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten
DE2104861A1 (ko)
EP1377358B1 (de) Wäscher und verfahren zum reinigen von gasen
DE3524032C2 (ko)
AT385913B (de) Verfahren zum reinigen von luft- oder gasstroemen nach dem mehrweg-sorptionsprinzip und zur ausfuehrung des verfahrens geeignete wanderbettfilteranlagen
DE4331544C2 (de) Vorrichtung zum Durchführen von Stoffaustausch zwischen einem Mediumsstrom und einem Schüttgutbett
DE3341318A1 (de) Nassabscheider sowie verfahren zur nassabscheidung von in gasen dispergierten schwebestoffen
DE4432995C1 (de) Verfahren und Vorrichtung zur Naßabreinigung von mit unlöslichen Partikeln beladenen Schüttschichtfiltern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE GB LI NL SE

17P Request for examination filed

Effective date: 19930119

17Q First examination report despatched

Effective date: 19940812

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FORSCHUNGSZENTRUM KARLSRUHE GMBH

RBV Designated contracting states (corrected)

Designated state(s): CH GB LI NL SE

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH GB LI NL SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960426

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970201

NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: A REQUEST FOR RESTORATION TO THE PRIOR STATE (ART.23 OF THE PATENTS ACT 1995)HAS BEEN FILED ON 091097

NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: THE REQUEST FOR RESTORATION TO THE PRIOR STATE AS PROVIDED FOR IN ART. 23 OF THE PATENTS ACT 1995 HAS BEEN REJECTED

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000629

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010501

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20011017

Year of fee payment: 10

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020724

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020725

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020724

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: CH

Ref legal event code: NV

Representative=s name: ROTTMANN, ZIMMERMANN + PARTNER AG

Ref country code: CH

Ref legal event code: EP